API Std 662 Part 2 (R2011)

Plate Heat Exchangers for General Refinery Services – Part 2 – Brazed Alumninum Plate-fin Heat Exchangers First Edition – ISO Adoption from ISO 15547-2:2005
standard by American Petroleum Institute, 02/01/2006

API Std 650

Welded Tanks for Oil Storage, Twelfth Edition, Includes Errata 1 (2013), Errata 2 (2014), and Addendum 1 (2014), Addendum 2 (2016), and Addendum 3 (2018)
standard by American Petroleum Institute, 03/01/2013

API Std 660 Datasheets

Datasheets for ANSI/API Standard 660, Shell-and-tube Heat Exchangers, Seventh Edition – National Adoption of ISO 16812:2002 – Petroleum and natural gas industries – Shell-and-tube heat exchangers
Data Sheet by American Petroleum Institute,

API Std 20M

Qualification of Suppliers of Machining Services for Use in the Petroleum and Natural Gas Industries, First Edition
standard by American Petroleum Institute, 10/01/2017